.dialog-wrapper {
   width: 100vw;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    // z-index: 100;
  .dialog-mask {
    width: 100%;
    height: 100%;
    position: absolute;
    left:0;
    top:0;
    background: #000;
    opacity: .4;
  }
  .dialog-content {
    // padding: .4rem; // 375px 图
    width: calc(2.9 * 2rem);
    height: calc(4.33 * 2rem);
    background: lightblue;
    border-radius: .2rem;
    z-index: 100;
  }
  .dialog-close {
    width: 1rem;
    height: 1rem;
    background: lightblue;
    border-radius: 50%;
    text-align: center;
    line-height: 1rem;
    z-index: 100;
  }
  .logo{

  }
  .title {

  }
  .sub {

  }
  .download-btn {

  }
}
